What does the Enable Broadband Performance option on the CD do? SBC DSL FAQ| The "Enable Broadband Performance" seems to only a make a change the RWIN to 65535. This was added to make modifications to one of the computer's most important tcp/ip settings without manually editing the registry. It would be better to use Dr. TCP to modify your RWIN to a lower number, retest your speed until it's optimal. by Ranma | ||